I just looked at info for Expresso(ultrapico.com/Expresso.htm) and the site info says it uses the ".net" flavor of the regular expression engine and if that is true then you can use this as the regular expression to find the lines:

Just hard code into the regular expression the text that should be found, For example:

Code:

^<p style="font-size:24pt">(.*)</p>$
Assert position at the beginning of the string «^»
Match the characters “<p style="font-size:24pt">” literally «<p style="font-size:24pt">»
Match the regular expression below and capture its match into backreference number 1 «(.*)»
Match any single character that is not a line break character «.*»
Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
Match the characters “</p>” literally «</p>»
Assert position at the end of the string (or before the line break at the end of the string, if any) «$»